Here's a bit of information on the Voyageur 11.8 I pulled from the original Schwinn catalog page scan that was sent to me by Bob Hufford a few weeks back when I was looking at purchasing one from ebay:

1982 Specs:
4130 chrome-moly with double butted top and down tubes
Chainstay: 16 7/8"
Headset & seat mast angle: 73 degrees
Fork Rake: 2"
Original equipment included mostly Shimano Altus LT parts, 27" alloy rims, 13-28 freewheel, SR stem, bars and seatpost.
Weight: 26lbs.
Wheelbase: 40"
Bottombraket drop: 2 3/4"